The mounting plate is the easiest part of a winch bumper to make, all you need are the mounting bolt pattern & dimensions for the winch, which every mfg provides. If you can do the layout for the bumper, you can do it for the mounting plate.
I'd be extremely surprised if bumper mfg's buy ready made mounting plates.
Four wheel drive allows you to get stuck
in places even more inaccessible.
62 88 Regular
67 109 6cyl NADA x2
74 Lightweight - The Antichrist
95 DI 5-speed
95 D90 5-speed
97 D1 Automatic